Description

Alizarin Cyanine 2R is a synthetic, water-soluble anthraquinone dye known for its vibrant color and specific chelating properties. This compound is valued for its ability to form stable, colored complexes with various metal ions, making it a critical reagent in analytical chemistry and industrial processes. It is primarily utilized by manufacturers and laboratories in the textile, biological staining, and analytical chemistry sectors for precise colorimetric detection and quality control applications.

Application

• Analytical Chemistry Reagent: Used as a metallochromic indicator in complexometric titrations for the determination of aluminum, fluoride, and other metal ions.
• Biological Staining: Employed in histology and cytology for staining tissues and cell structures, particularly in combination with other dyes.
• Textile Dyeing: Functions as a dye for protein fibers like wool and silk, providing specific color shades.
• Ink Formulation: A colorant component in the production of specialized inks for printing and marking.
• Research & Development: Serves as a model compound or reagent in chemical research involving dye chemistry and metal complexation studies.
• Quality Control Testing: Applied in industrial labs for the qualitative and quantitative analysis of metal contaminants or specific ions.

Basic Information

Product Name	Alizarin Cyanine 2R
CAS No.	5413-65-0
Molecular Formula	C₂₀H₁₃NO₉
Molecular Weight	411.32 g/mol
Synonyms	Alizarin Cyanine Green F; Mordant Blue 3; Alizarin Cyanine Green; Alizarin Viridine; C.I. 56005; Acid Alizarin Viridine; 1-Amino-4-(3-carboxy-4-hydroxyphenylazo)-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic Acid
EINECS	226-525-8

Quality Control

Our Alizarin Cyanine 2R is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, strength, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and specific tests is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark green to brownish-green powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Residue on Ignition (Sulfated Ash)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble, clear solution

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.